set_property    PACKAGE_PIN  F8  [get_ports  led8_Q]
set_property    IOSTANDARD LVCMOS33  [get_ports led8_Q]
set_property    PACKAGE_PIN  AD24  [get_ports sw2_J]
set_property    IOSTANDARD LVCMOS33  [get_ports sw2_J]
set_property    PACKAGE_PIN  AC21  [get_ports  sw1_K]
set_property    IOSTANDARD LVCMOS33  [get_ports sw1_K]
set_property    PACKAGE_PIN  AC22  [get_ports sw3_CLK]
set_property    IOSTANDARD LVCMOS33  [get_ports  sw3_CLK]
